Any used Fiat 500 is still going to be pretty new, but in some ways, the most basic Pop trim level may be the most fun unless you go for the pricier 500c convertible or the hot-rod Abarth performance model. On cars this small, every option adds weight—and the Fiat 500 needs every advantage it can get. Plus, it’s an honest, small, simple car that doesn’t really need much in the way of options.